---
title: "HubSpot DevTools for Chrome and Firefox"
description: "A browser extension for HubSpot CMS developers with quick access to debug parameters and HubL documentation."
url: "https://freshjuice.dev/hubspot-devtools/"
---
# HubSpot DevTools for Chrome and Firefox

A browser extension for HubSpot CMS developers. Quick access to debug parameters, cache busting, and HubL documentation — all from your browser toolbar.

[Add to Chrome](https://chromewebstore.google.com/detail/jmlcckldioeofjchfaomgaimhpnlfgok) [Add to Firefox](https://addons.mozilla.org/en-US/firefox/addon/freshjuice-hubspot-devtools/)

— or —

*[Squeeze your own juice from the source code](https://github.com/freshjuice-dev/hubspot-devtools-extension)*

**Privacy First:** No data collection, no tracking, no telemetry. [Learn more](https://github.com/freshjuice-dev/hubspot-devtools-extension/blob/main/PRIVACY.md)

![HubSpot DevTools extension popup](https://freshjuice.dev/img/hubspot-devtools/light-mode.png)

![HubSpot DevTools extension popup](https://freshjuice.dev/img/hubspot-devtools/dark-mode.png)

Light

Dark

Drag to compare dark and light themes

## Built for HubSpot developers

### Debug Mode Toggle

Quickly add `hsDebug=true` to your current page with one click.

### Cache Buster

Add `hsCacheBuster` timestamp to bypass HubSpot caching instantly.

### BackOffice Dev Mode

Enable `developerMode=true` for HubSpot backend debugging.

### Auto-apply to Links

Automatically propagate debug parameters to all internal links on the page.

### HubL Quick Links

Fast access to HubL documentation — Functions, Variables, Filters, Loops, If Statements, and HubDB.

### Design Manager

One-click access to HubSpot Design Manager from any page on your portal.

## Open source & community-driven

HubSpot DevTools is free, open-source, and built with love. We welcome contributions, bug reports, and feature suggestions from the community.

[Report a bug](https://github.com/freshjuice-dev/hubspot-devtools-extension/issues/new?template=bug_report.md) [Request feature](https://github.com/freshjuice-dev/hubspot-devtools-extension/issues/new?template=feature_request.md) [Contribute](https://github.com/freshjuice-dev/hubspot-devtools-extension?tab=readme-ov-file#contributing)